Messages in this thread | | | Date | Fri, 16 Feb 2001 18:37:07 +0100 | From | Jamie Lokier <> | Subject | Re: x86 ptep_get_and_clear question |
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> > Ben, fancy writing a boot-time test? > > > I'd never rely on such a test - what if the cpu checks in 99% of the > cases, but doesn't handle some cases ('rep movd, everything unaligned, > ...'.
A good point. The test results are inconclusive.
> And check the Pentium III erratas. There is one with the tlb > that's only triggered if 4 instruction lie in a certain window and all > access memory in the same way of the tlb (EFLAGS incorrect if 'andl > mask,<memory_addr>' causes page fault)).
Nasty, but I don't see what an obscure and impossible to work around processor bug has to do with this thread. It doesn't actually change page fault handling, does it?
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